Sigma 2 Fix Page

The lens is heavy (835g), but the image quality is clinical. For videographers, the offers silent autofocus via a stepping motor. The "2" in this context signifies the second generation of this focal length in the Art line, ironing out the focus breathing issues of the original 2017 model.

: For those interested in medical breakthroughs, this review of CT1812 (a novel sigma-2 receptor ligand) discusses its role in blocking toxic proteins in the brain. sigma 2